8Jamieson D J, Steege J F. The prevalence of dysmenorrhea, dyspareunia,pelvic pain, and irritable bowel syndrome in primary care practices[J]. Obstet Gynecol, 1996,87( 1 ) :55 -8.
9Davis A R, Westhoff C L. Primary dysmenorrhea in adolescent girls and treatment with oral ontraceptives [ J ]. J Pediatr Adolesc Gynecol,2001,14( 1 ) :3.
